Blast-furnace-chimney valve.



A. G. MOK'EE. BLAST FURNAGE GHIMNEY VALVE.

' APPLIOATION FILED DEO.11, 1909.

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A. G. MUKEE. BLAST FURNAGE GHIMNBY VALVE,

APVPLIOATION FILED DEO.11; 1909. v

Patented Oct. 25, 1910.

2 SHEETSSHBET 2.

4. THE NoRms Ps'rsns ca., WASHINGTON. n. c,

' To all whom t may concern:

ARTHUR G. MCKEE, oF CLEVELAND, oHIo.

BLAST-FURNCE-CI-IIMNEY VALVE.

Be it known that I, ARTHUR G. McKEn, a citizen of the United States,resident of Cleveland, lcounty of Cuyahoga, and State of Ohio, haveinvented a new and useful Improvement in Blast-Furnace Chimney Valves,of which the following is a specification, the principle of theinvention being herein explained and the best mode in which I havecontemplated applying that principle, so as to distinguish it from otherinventions.

My invention relates to devices for connecting a blast furnace stovewith ya chimney, such devices being commonly referred to as blastfurnace chimney valves.

The object of the invention is to effect suoli connection between thestove and chimney in a ready and economical manner, and at the same timepermit the use of a separate and independent closure for the opening inthe'stove.

The said invention consists of means hereinafter fully described andparticularly set forth in the claims.y c

The annexed drawings and the following description set forth in detailcertain mechanism embodying my invention, the disclosed means, however,constituting but one of various mechanical forms in which thek principleof the invention may be applied. In said annexed drawingsr-Figure 1 is ahorizontal section of the chimney valve embodying my invention, showingthe mouth of a blast furnace stove opening in dotted lines adjacentthereto. Fig. 2 is a vertical longitudinal section taken upon the planeindicated' by line II-II'in Fig. l. Fig. 3 is a vertical transversedetail section taken' upon the `plane indicated by line IIL-III in Fig.2. F ig. l is a vertical transverse fragmentary section taken upon theplanel indicated by line IV-IV in Fig. 5. Fig. 5 is averticallongitudinal section of a modified form of my invention:

Referring first tothe rform ofl my invention illustrated in Figs. l, 2and 3, the main casing A of the valve is provided with a front opening'c having a horizontal axis. This front opening is placed opposite andsome distance away from the mouth Z) of the opening B in the blastfurnace stove. The casing is further provided with a lower horizontalopening a', which registers with Patented Oct.' 25, 1910'.

Application med December 11, 1909. saiNo. 532,516;

an opening c ina hollow connectionC which communicateswith the chimney.The opening c is controlled by means of a valve lD, mounted on a` pivotd2, and this valve is connected with an oscillatory transverse shaft Ethrough the medium of crank Iarms ci d and links el' d'. Fixed to thisshaftE is a gear segment E', which meshes with a pinion f rfixed to anoperating shaft F. Upon the outer end of thislatter shaftis secured acrank F', by means of which the 65U shaft F and pinion 7 may be rotated,as will be understood. i

Mounted in a hanger G secured to the interior of the upper portion ,ofthe casing A is ya grooved roller G', said hanger being 70 fixedcentrally of the casing, as shown in Fig. 3. Longitudinally adjacent tosaid roller is formed an opening a2 in the casing, and projectingthrough this opening and resting in the groove and upon thefuppersurface of the roller G', is a horizontal bar H. The outer portion ofthis bar engages the lower surface of a roller G2 mounted upon asuitable bracket G3 secured to the exterior of the casing. This rollerG2 is 80 also preferably grooved. Y y

The roller G' is ixedly secured lto a transf verse horizontal operatingshaft Gt, `which extends laterally and through the wall of l the casing,the latter forming, together with the hanger G, a bearing for the shaft.To the exterior end of vthis shaft is Secured the operating crank G5,Fig. 3. It will therefore be seen that the shaft and roller G' may berotated by means of said crank. 90

Hung upon and suitably secured toy the inner end of the bar H is atubular duct member J, in the form of a hollow sleeve havinga horizontalaxis. This sleeve, as shown, is of a diameter such that it may readilypass horizontally through the opening a of the casing, and may thereforebe projected from the interior of the casing in an outward directionthrough such opening,

and conversely, may be drawn from theexterior of the `casing to withinthe interior of the latter. This ductmember being hung upon the innerend of the bar H, causes the latter to bear downw'ardlyiupon thel rollerG' and upwardly against the roller G2. The 105 weight of the'member .Iis such yas to cause sufhcient frictional engagement between roller G'and the bar, so that the latter and l, i i

member J will be moved horizontally when the shaft- Gat is rotated bymeans of the crank G5.

Vhen the duct member J is drawn into the interior of the casing, itwillbe seen that the mouth Z) of the opening B of the blast furnace stove isfree and unobstructed, and any suitable closure may therefore be appliedto said mouth for closing this opening while air is being blown throughthe blast furnace stove. Assuming now that it is desired to connect thestove with the chimney, the mouth b is opened by removing the closure,and the crank G5 is turned so as to project the duct member J outwardly,and cause its outer face to engage the vertical surface of the mouth Bof the stove, as shown in dotted lines in Fig. 2. rIhe crank F is thenoperated to turn the pinion f, which in turn actuates the segment E',the shaft E, crank arms CZ, links cl', and so raises the valve D, thelatter moving about its pivot d2. Communication between the interior ofthe stove and the chimney is thereby effected, and the gases ofcombustion are permitted to pass out of the stove, through the chimneyvalve, and so into the chimney.

When the heating operation of the stove is completed, and it is desiredto blow air through same, as is usual in blast furnace practice, thevalve D is first caused to cut off communication with the chimney, andthe sleeve or duct member J withdrawn into the interior of the casing bymeans of the crank G5 and connected parts, as will be readilyunderstood. This leaves the opening Z) of the mouth B free to be againclosed.

In Figs. 4 and 5, I have illustrated a modified form of the abovedescribed structure, in which the valve connects with the chimney in anupward direction. In this form, the opening c, aording communicationwith the chimney, is located above the chimney valve, and in the formillustrated is controlled by means of a butterfly valve K, mounted upona pivotal rod G, to whose outer end is secured a double crank arm 70,which may be actuated by means of ropes or chains 7a2 702. In thisparticular form of my invention, I have shown the operating shaft G4, bymeans of which the bar H is moved longitudinally, to be of sulficientlyenlarged diameter to in itself form the required roller bearing, twocollars g g being lixed to said shaft by means of set screws g g, tohold the bar laterally in place, as shown in Fig'. 4. As in the firstdescribed device, a roller G2 is provided upon the exterior, againstwhich the bar H bears upwardly, as will be readily understood. As in thefirst described device, the

bar H is moved longitudinally by turning the crank G, which rotates theshaft G4, upon whose upper surface said bar rests. I'Vhen the stoveconnection is made, the valve K is opened to afford the requiredcommunication with the chimney, as will be readily understood.

Having fully described my invention, what I claim therefore, and desireto secure by Letters Patent is l. The combination of a chambercommunicating with a chimney, a blast stove, rollers mounted upon saidchamber, a bar supported by said rollers, a telescoping connectionsuspended from said bar, and means for actuating the former and adaptedto connect said chamber and an openingl in said stove.

2. The combination of a suitable casing provided with an exterioropening having a horizontal axis; said casing being arranged tocommunicate with a chimney; a valve for controlling such communication;manually operable means for operating said valve; rollers supported bysaid casing; a horizontally slidable bar supported by said rollers; anda duct member having a horizontal axis and a diameter such as to permitit to pass through said exterior opening; said duct member beingsupported by said bar.

3. The combination of a suitable casing provided with an exterioropening having a horizontal axis, and arranged to communicate with achimney; a manually operable valve controlling such chimneycommunication; a roller secured upon the interior of said casing; aroller mounted upon the exterior of the casing, and having its axislocated in a plane above the axis of the first mentioned roller; ahorizontally located bar extending through said casing, resting upon theupper part of said first mentioned roller, and engaging the underportion of the second named roller; a tubular duct member supported bysaid bar and having a diameter such that it may be caused to passthrough said exterior opening; and means for manually rotating saidfirst-named roller, whereby said bar and duct member may be moved in thelongitudinal direction of said bar, and said duct member may beprojected through said opening or withdrawn from such projectingposition into the casing.

9gned by me, this 3d day of December7 l ARTHUR G. MCKEE.

Attested by- CURT B. MUELLER, WINIFRED WALTZ.

